3D printers; 3D printing pens; Engraving machines; Extrusion moulding machines; Industrial robots; Injection plastic molding machines; Laser engraving machines; Laser machines for cutting, marking, and engraving fabric designed for installation directly above embroidery machines; Machine parts, namely, work holding fixtures for precision machining applications; Milling machines for metalworking; Numerically controlled machines and machine tools used for machining parts; Shaft couplings as par...